HOLD function

See also:

Using the SmartKey
The SmartKey must be close to the driver's door handle. - Point the tip of the SmartKey at the driver's door handle. - Press and hold the button until the side windows and the sliding s ...

Exterior & Styling
Particularly from the rear, the GL's appearance looks a bit like Mercedes' original M-Class — so much so that a passenger walked up to an older M thinking it was the GL. The GL550's 21-inch wheels ...

Opening
You can open the tailgate automatically using the SmartKey or the handle in the tailgate. - Press and hold the button on the SmartKey until the tailgate opens. or - When the tailgate is unl ...